Home / 38,420.51-57,640.02-12,125.17

Finding the Fourth Proportional to 38,420.51, 57,640.02 and 12,125.17

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Solution

The fourth proportional to 38,420.51, 57,640.02 and 12,125.17 is: 18,190.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,420.51 : 57,640.02 = 12,125.17 : x
  2. Step 2: Convert to fraction form
    38,420.51/57,640.02 = 12,125.17/x
  3. Step 3: Cross multiply
    38,420.51x = 57,640.02 × 12,125.17
  4. Step 4: Simplify right side
    38,420.51x = 698,894,897.20
  5. Step 5: Solve for x
    x = 698,894,897.20/38,420.51
  6. Step 6: Final answer
    x = 18,190.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.